lantadene D | 132194-33-3

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: lantadene D
• 英文别名: (4R,4aS,6aR,6aS,6bR,8aR,12aR,14bS)-2,2,6a,6b,9,9,12a-heptamethyl-4-(2-methylpropanoyloxy)-10-oxo-3,4,5,6,6a,7,8,8a,11,12,13,14b-dodecahydro-1H-picene-4a-carboxylic acid
• CAS: 132194-33-3
• 化学式: C₃₄H₅₂O₅
• 分子量: 540.784
• InChiKey: JJOWBVSGDGLUKQ-SBFMVFAKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.6
• 重原子数：
  39
• 可旋转键数：
  4
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.85
• 拓扑面积：
  80.7
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  diphenylmethyl 22β-isobutyryloxy-3-oxoolean-12-en-28-oate 在 苯甲醚 、 三氟乙酸 作用下， 反应 0.08h， 以53.1%的产率得到lantadene D
  参考文献：
  名称：

  Lantadenes and Their Esters as Potential Antitumor Agents

  摘要：

  Lantadenes are pentacyclic triterpenoids of the weed Lantana camara. Five new lantadenes (14-18) and their methyl esters (20-24) were synthesized, characterized, and screened for cytotoxicity against four human cancer cell lines. The parent compound (1) and the four most active compounds (15, 16, 21, and 22) were further studied for their in vivo tumor inhibitory potential on squamous cell carcinogenesis in Swiss albino mice induced by 7,12-dimethylbenz[a]anthracene (DMBA) and promoted by 12-O-tetradecanoylphorbol-13-acetate (TPA). These results were supported by histopathological studies and discussed in terms of structure-activity relationships. The results inferred the importance of the groups attached to C-22 and C-17 in relation to the antitumor activity of these compounds.

  DOI：

  10.1021/np800167x

文献信息

• Synthesis of lantadene analogs with marked in vitro inhibition of lung adenocarcinoma and TNF-α induced nuclear factor-kappa B (NF-κB) activation
  作者：Monika、Ankesh Sharma、Sharad Kumar Suthar、Vaibhav Aggarwal、Hong Boon Lee、Manu Sharma

  DOI：10.1016/j.bmcl.2014.06.068

  日期：2014.8

  The new series of pentacyclic triterpenoids reduced lantadene A (3), B (4), and 22β-hydroxy-3-oxo-olean-12-en-28-oic acid (5) analogs were synthesized and tested in vitro for their NF-κB and IKKβ inhibitory potencies and cytotoxicity against A549 lung cancer cells. The lead analog (11) showed sub-micromolar activity against TNF-α induced activation of NF-κB and exhibited inhibition of IKKβ in a single-digit micromolar dose. At the same time, 11 showed promising cytotoxicity against A549 lung cancer cells with IC50 of 0.98 μM. The Western blot analysis further showed that the suppression of NF-κB activity by the lead analog 11 was due to the inhibition of IκBα degradation, a natural inhibitor of NF-κB. The physicochemical evaluation demonstrated that the lead analog 11 was stable in the simulated gastric fluid of pH 2, while hydrolyzed at a relatively higher rate in the human blood plasma to release the active parent moieties. Molecular docking analysis showed that 11 was hydrogen bonded with the Arg-31 and Gln-110 residues of the IKKβ.
• Lantadenes and Their Esters as Potential Antitumor Agents
  作者：M. Sharma、P. D. Sharma、M. P. Bansal

  DOI：10.1021/np800167x

  日期：2008.7.1

  Lantadenes are pentacyclic triterpenoids of the weed Lantana camara. Five new lantadenes (14-18) and their methyl esters (20-24) were synthesized, characterized, and screened for cytotoxicity against four human cancer cell lines. The parent compound (1) and the four most active compounds (15, 16, 21, and 22) were further studied for their in vivo tumor inhibitory potential on squamous cell carcinogenesis in Swiss albino mice induced by 7,12-dimethylbenz[a]anthracene (DMBA) and promoted by 12-O-tetradecanoylphorbol-13-acetate (TPA). These results were supported by histopathological studies and discussed in terms of structure-activity relationships. The results inferred the importance of the groups attached to C-22 and C-17 in relation to the antitumor activity of these compounds.